The Martin Center Address 3901 S. Fremont Ave. Springfield, MO 65804 location Get Directions Phone: 417-269-1182 Hours The various services offered at The Martin Center are available at different times, Monday through Friday:MRIs: 6 a.m.–9:30 p.m.Nuclear medicine 7 a.m.–5 p.m.PET/CT: 7 a.m.–5 p.m.Ultrasound: 7 a.m.–5 p.m.X-rays: 7 a.m.–6:30 p.m.Labs: 7 a.m.–6:30 p.m.Endoscopy services: 7 a.m.–5 p.m. About The Martin Center provides a wide variety of outpatient radiology, gastroenterology and endoscopy services. The Martin Center is located on the southwest corner of south Fremont and east Independence in Springfield. Visitor Restrictions Due To COVID-19Please note there may be visitor restrictions at some of our locations due to COVID-19. Please see our latest COVID-19 updates to get up-to-date information on current restrictions.